Display screen with a graphical user interface



The FIGURE is a front view of a display screen with a graphical userinterface for showing our new design.

The broken line showing of the two outermost rectangles and the twoconcentric circles in the lower center illustrates an electronic devicewhich represents environment. The remainder of the broken linesillustrate portions of the graphical user interface. The broken linesform no part of the claimed design.

CLAIM The ornamental design for a graphical user interface for a displayscreen or portion thereof, as shown and described.